"As society embraces all forms of digital entertainment, this latter-day Noah is looking the other way. A Silicon Valley entrepreneur who made his fortune selling a data-mining company to Amazon.com in 1999, Mr. Kahle founded and runs the Internet Archive, a nonprofit organization devoted to preserving Web pages — 150 billion so far — and making texts more widely available.

But even though he started his archiving in the digital realm, he now wants to save physical texts, too."